%0 Journal Article %A Ivan A. Bizyaev %A Andrey V. Tsiganov %T On the Routh sphere %J Russian journal of nonlinear dynamics %D 2012 %P 569-583 %V 8 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2012_8_3_a10/ %G ru %F ND_2012_8_3_a10